Odporność na przebicia materiałów kompozytowych
Journal Title: Autobusy. Technika, Eksploatacja, Systemy Transportowe - Year 2018, Vol 220, Issue 6
Abstract
For structures that carry dynamic loads, the requirements are imposed for safety reasons. The requirements apply to both materials and construction. This requires searching for optimal calculation methods, including geometric and physical nonlinearity, which are results from the construction of the structure. An example is various ballistic structures (ballistic shields), which are hit by bullets in which huge energy is accumulated. In this case, the hitting in the shield with a bullet can be considered as a load due to mass impact. Loads at high strain rates are described by various mathematical models. The mathematical model is complex because a large number of "coefficients" is required, moreover, the obtained test results are not always repeatable. The paper presents the results of shooting multilayer plates with composite materials with 7.62 mm caliber bullets. The shield consisted of three layers, the outer layers were steel or aluminum, the inner layer was natural or modified wood. The samples had the shape of a shield and were 50 mm in diameter and of different thickness. The results of the research allowed to assess the impact of wood modification on its puncture resistance.
Authors and Affiliations
Lesław Kyzioł
Keywords
Related Articles
- EP ID EP561823
- DOI 10.24136/atest.2018.129
- Views 72
- Downloads 0
Wykorzystanie sztucznej inteligencji do modelowania stanu geometrycznego powierzchni po obróbce EDM stali narzędziowych
W artykule przedstawiono zastosowanie metod sztucznej inteligencji w postaci sztucznych sieci neuronowych (SSN) do modelowania stanu geometrycznego wyrobu kształtowanego w procesie EDM. Zastosowano SSN o różnej architekt...
Criteria for the assessment of the effectiveness of projects relating to the development of the transport potential in railway transport
Based on the experience from research and development work for railway transport companies, the paper presents the characteristics of selected indices relating to the Cost-Benefit Analysis and the Life Cycle Cost (LCC) A...
Ruch cieczy w zbiorniku poziomym
The article discussed a horizontal motion of tank filled with liquid. Discussed a causes of motion of liquid in the tank. Were made analysis by the theory of linear and nonlinear. In article the given of frequency of vib...
Badania kalibracyjne czujników stężenia CO w klimatycznej komorze badawczej
This article presents the construction and tests of a simple climate chamber used for testing elements in variable temperature and humidity. There is also possible pre-smoked the working space of the chamber. Authors use...
Problematyka emisji toksycznych składników spalin silników lotniczych
The paper presents the issues of emission of toxic compounds in exhaust gases of aviation engines. The specifics of aviation operations with particular focus on the landing take-off operation (LTO) and methods for estima...